void main() {
    print 0 != 5;
    print 4 != 5;
    print 5 != 5;
    print 6 != 5;
    print 10 != 5;
    print 0.0 != 5.0;
    print 4.0 != 5.0;
    print 5.0 != 5.0;
    print 6.0 != 5.0;
    print 10.0 != 5.0;
    print false != false;
    print true != false;
    print false != true;
    print true != true;
}